Alexie Lepoer was reported missing shortly before 5 p.m. and was discovered about a half-hour later in the murky water of the swimming pool at the Park Village West complex on Main Street, where he lived.

He was rushed to UMass Medical Center in Worcester, where he was pronounced dead.

One neighbor told WBZ-TV Lepoer was autistic and apparently wandered away from his apartment.

Witnesses say a diaper and cell phone, possibly belonging to the boy, were found near the locked gate to the pool.

The pool had not yet been opened for the season. It’s not clear yet how Lepoer got in there.